function swap_image(id,name,on_off){

if(on_off==2)
document.getElementById(id).src='./img/button_'+name+'.jpg';
else
document.getElementById(id).src='./img/button_'+name+'_1.jpg';
}

function open_rechtshinweise(){

rechtshinweise=window.open('./rechtshinweise.php','rechtshinweise','width=410, height=430, left=200, top=200, directories=no, toolbar=no, location=no, menubar=no, scrollbars=no, status=no, resizable=no, dependent=no');
  rechtshinweise.focus();
  return false;
}